Answer:
The alliance system
Explanation:
German government's guarantee to offer aid to Austria-Hungary, and Russia's danger to counter if Austria-Hungary attacked Serbia made the alliance together framework and instrument for animosity. As proven by the evidence, the hostility between certain powers was uncontrollable therefore causing the outbreak of WW1.
Answer:
trading , immigration, cultures , technology
Explanation:
the internet can be one
capitalism
I know for sure that the second one is going to be C.)
Answer:
Human population growth has gotten larger and larger as time goes on. The first 1 billion people were in 1803. It has taken 120 years to get to another billion people. It is changing by 80 million people born a year. At 10 billion, we will most likely fall short of food supply due to the overpopulation.
Answer:
Today, people have divided into groups due to diversity.